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Finding the Fourth Proportional to 147,328.20, 220,992.30 and 36,520.20

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Solution

The fourth proportional to 147,328.20, 220,992.30 and 36,520.20 is: 54,780.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,328.20 : 220,992.30 = 36,520.20 : x
  2. Step 2: Convert to fraction form
    147,328.20/220,992.30 = 36,520.20/x
  3. Step 3: Cross multiply
    147,328.20x = 220,992.30 × 36,520.20
  4. Step 4: Simplify right side
    147,328.20x = 8,070,682,994.46
  5. Step 5: Solve for x
    x = 8,070,682,994.46/147,328.20
  6. Step 6: Final answer
    x = 54,780.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.